DUNBAR
Take a 5 gallon bucket of water and flush it down manually and see if it flushes down.
If it does, it sounds like the water level in the tank is wrong, or the refill tube to the overflow is either crimped and not allowing enough water to replenish the trap after flushing.
Water level in the tank should be one inch below the top of oveflow tube.
“Your best interest is secured by making the right decisions the first time.”
